234840317 has 2 divisors, whose sum is σ = 234840318. Its totient is φ = 234840316.

The previous prime is 234840299. The next prime is 234840367. The reversal of 234840317 is 713048432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167288356 + 67551961 = 12934^2 + 8219^2 .

It is a cyclic number.

It is not a de Polignac number, because 234840317 - 2⁶ = 234840253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234840367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117420158 + 117420159.

It is an arithmetic number, because the mean of its divisors is an integer number (117420159).

Almost surely, 2^234840317 is an apocalyptic number.

It is an amenable number.

234840317 is a deficient number, since it is larger than the sum of its proper divisors (1).

234840317 is an equidigital number, since it uses as much as digits as its factorization.

234840317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 234840317 is about 15324.5005465105. The cubic root of 234840317 is about 616.9607738880.

Adding to 234840317 its reverse (713048432), we get a palindrome (947888749).

The spelling of 234840317 in words is "two hundred thirty-four million, eight hundred forty thousand, three hundred seventeen".